{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Taken together , these data suggest that acquisition of extraordinary levels of copper is an important factor in the survivability of the pathogen in the copper - deplete environment of infection , and effective copper concentration may play an important role in the pathogenesis of C . neoformans ."}
{"Chemical": ["copper"]}